Windows 7: Packard bell ext hdd not found

Hi,

I have just put in a new hard disk for fresh install of windows 7 as I do not like windows 8.



I have since found that my laptop with win 8, picks the drives up instantly! So what is the darned difference and is there a way of finding the additional drivers - packard bell are useless.

Now back into win 7 and the drives are useless and not recognised.......

any driver suggestions would be most appreciated.

Steve